| SI | refractory anemia characterized by sideroblasts in the bone marrow |
|---|---|
| SI | an abnormal red blood cell containing granules of iron not bound in hemoglobin |
| SI | a deficiency of iron |
| SI | glycoprotein that carries iron in the blood |
| SI | fibrosis of the lung caused by iron dust |
| SI | a saddle for a woman |
| SI | on or as if on a sidesaddle |
| SI | a minor show that is part of a larger one (as at the circus) |
| SI | a subordinate incident of little importance relative to the main event |
| SI | a flight maneuver |
| SI | an unexpected slide |
| SI | (Church of England) an assistant to the churchwarden |